What? I don't know how you can say that with:
Talib
Dennard
Arrington
Ryan
...CB should be the top priority in next year's draft.
Sorry about that, my post wasn't totally clear at the beginning. A bit further down, I specified that I see DT, G/C, and CB as the three areas of greatest need, where BPA between the three of them would be my ideal strategy (S could become part of that group as well, depending on how Harmon plays over the next few weeks). Of all of those needs, a CB with the size, athleticism, and skill to play press man coverage is the hardest to find, so if the Pats are in a position to pick one, then that should be the call IMO.
I'd rank CB in that category because Talib's hip injury appears to be a chronic problem. Dennard is a legit starter outside, and Arrington is what he is, which is a pretty good corner in the slot. The jury's still out on Ryan. He looked awful on Sunday, and looked great for two weeks before that. Standard rookie business.
You could make the same argument for DT that you seem to be making for CB: that with Wilfork, Jones, Vellano and Kelly coming back, there's no real need there (I refuse to label Armstead promising when we've seen literally nothing from him). The only position where the Pats have a talent deficiency, at the starter level, IMO, is C/G (and maybe S, although Harmon could be the guy there). Luckily, you usually don't have to draft these guys in the first round, which is why I don't have it ranked as the clear #1 above DT and CB.
In the case of both DT and CB, the best case scenario is pretty good, but with both it's one injury--and an injury that should be more or less expected, at that--before the entire unit is thrown into disarray and guys are stuck playing out of position with responsibilities that they're not suited for.